Improvement in shears and scissors



N. PETERS. fHOTQALITHDGRAPHER, WASHINGTON D C `my improved shears orscissors. i A and- B represent the blades of a parrot' shears or @sinddtjjliw. l

CHARLES c. .I`oIII\Iso`I\ I,A or SPRINGFIELD, VERMONT.

Lette/rs Patent N 102,944, dated May 10, 1870.

`IiiMZPIR'ITEIVIIElN-'I IN SHEA'RS AND SCISSORS.

The Schedule referred to in these Letters Patent and making part of thesame To allfwhom itemayconcern y Be it known that I, CHARLES C.JOHNSON', of

l Springfield, in the county of WVindsor and in the State of Vermont,have `invented certain new andusefnl Improvements in Shear-sandScissors; anddo hereby de clarethat :the following is a full, clear,an'dexact description thereof, reference being hadto theaccompanyingdrawiugs and tothe letter-sof reference marked thereonmaking `a partici' this specification, l The naturel ofmyinventionconsists in a novel coustruction of the joint Ainshears and scissors,whereby I the joint yis prevented from `becoming loose by the wear andaction ofthe blades.

`In order to enable others skilled in the art to which my inventionappertains to make and use 'the same, I will" now proceed to describeits construction and operation, referring to the annexed drawings, `inwhichl Figure-1 is aside view, and Y y 'Figures 2 and 3 are longitudinalvertical sectionsV of scissors, pivoted together-by'a pivot, a, passingthrough them, as shown in fig. 3.

This pivot is attached to a` bar, C, whichA is secured to the handle of.the blade A by means of a screw, b,

thc blade B passing between s aidbar O and the blade A. The end 1ct'thel bar O nearest to-the handle' of the blade Amay also be secured by asmall screw orA rivet, Nas seenlin fig. i

g In place of thc pivotapassing through the two blades, the. blade Amaybe provided with a round projection extending about halll thedistance through -the blade B, while -on the bar O is a similarprojection, lwhichcompletes the pivot, as seen in Iig. 2.

- By this arrangement, the blades do not come in contact with the screwto loosen or tighten, as is always the case with common shears. l

rlhe joint isnot rigid, but is a very little spring in it-j ust enoughto let the blades cut smoothly from heel to joint against each other,which prevents them cutting each others edge, as is often the case witha rigid joint. Then, by the screw, this joint can be at once adjusted tovery heavy cutting, as well as to light. It can be readily taken a'part,for grinding, by removing the screw. In the old way,it is usn-allythecase that, when' the screw begins to get loose, it gets headed at once,and then the bla-des cannot apart.

Having thus fully described my invention,

What I yclaim Aas new, and desire tov secure by Letters Patent, is#-re`adily be taken `In combination, with the shear-blades lA B, thecInploymentv of the spring C, connected to one of the handles, andsecured, by a screw, b, to one of the In testimony that I claim 'theforegoing, I have hereunto set my hand this 19th day of February, 1870.CHARLES, C. JOHNSON.

Witnesses: I

DAVID M; SMITH, HENRY'L. ROBINSON.

